Change content of span by id

Question

I am trying to change john to mike. I have no idea why its not working. ``` John ``` I am trying this but not working i have no clue why not working. ``` function set() { document['getElementById']('user')['value'] = Owner; // owner value is mike } ```

Accepted Answer

If you want to change the id, use

```
 document['getElementById']('user').id = 'mike'; 
```

or, more classically,

```
 document.getElementById('user').id = 'mike'; 
```

If you want to replace "John" (that is not the ID but the content of the span), do

```
 document.getElementById('user').innerHTML = 'mike'; 
```

Change content of span by id

Solution

Problem